MILWAUKEE -- Aaron Rowand's bruised ribs kept him out of the Giants' lineup for Saturday's game against the Milwaukee Brewers and could shelve the center fielder for Sunday's series finale, manager Bruce Bochy said.

"More than likely [he'll be out] both days," Bochy said. "He's pretty sore. He wants to play. This is my decision. At this point, I think we're better off trying to get it to calm down and give him a couple of days. He's a little sorer, I think, than he's telling us."

Rowand, who's hurting on his left side, affirmed he wanted to play, but doubted that Bochy would allow him even to pinch-hit.

"Boch said he wanted to give me the full day off and not take any swings," said Rowand, who's batting a team-high .385 (5-for-13).

Rowand, who hurt himself Wednesday night at Los Angeles while diving for Blake DeWitt's bloop double, was noticeably slow running the bases upon hitting a sixth-inning double Friday. It was not immediately known whether Rowand would undergo X-rays to check for a possible fracture.

In another injury-related development, Bochy said that left-hander Noah Lowry, who's recovering from surgery to his throwing forearm, tossed a ball at a 90-foot distance Friday and is expected to try to throw off a mound in a week to 10 days. Lowry isn't expected to pitch competitively until early May at the soonest, revising the initial late-April estimate.